Seiko Cal. 6630 - 143

The Seiko 6630-143 represents an important milestone in Seiko's 1995 lineup. Powered by the 6630 caliber with 19j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-9ae43b1dd587]

Also known as: Bullhead, World Timer

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

19j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1995

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